http://theelearningcoach.com/elearning_design/webinar-best-practices/

http://theelearningcoach.com/media/10-articulate-presenter-tricks-and-tips/

http://edudemic.com/2010/06/the-ultimate-guide-to-giving-outstanding-presentations/


http://www.businessinsider.com/be-authentic-connect-with-your-audience-presentation-lessons-from-gary-vaynerchuk-2010-7

http://www.fastcompany.com/1671069/steve-jobs-dominated-his-iphone-4-presentation-learn-how-yourself
Learn Steve Jobs' Presentation Techniques

http://www.businessinsider.com/how-to-ace-your-next-presentation-2010-3#its-true-practicing-is-the-best-preparation-possible-1
How to Ace Your Next Presentation

Something as simple as a Google Form with a few questions from the audience such as “what do they think of as a PLE”, “what do tools, communities, and services lack to allow learners use to direct their own learning and pursue educational goals”, “what answers are you looking for as you come to this conference”. You can gather thoughts in advance from your keynode to create the unkeynote. Very creative group on this document. [@njtechteacher]

What are you going to offer your attendees that meets their desire(s) to (at least) be taught something new or be inspired (at best)?

For me, the Mishra & Koehler SITE 2008 keynote is the best two-person/tag-team keynote I’ve seen:
http://punya.educ.msu.edu/2008/03/18/site-2008-keynote/
(Jon Becker)

-(Guillaume Semblat, from University of Ottawa, Canada - @gsemblat)

IDEA1
:I propose you run a online survey prior your presentation with a series of questions and use the result of this survey to illustrate your speech and to produce visual results like Word Clouds. The google docs Form is always nice to use and to demonstrate to audience.
IDEA2
: Prior to your speech, ask to attendees to record a video with a Flip camera or a webcam and use some of them during your speech.
IDEA3: PPT is too flat, I have seen some nice presentations in the past, like http://prezi.com/. What about creation a Collage with http://www.vuvox.com/collage/edit